title: 2,3-Tri-methyl-ene-7,8-di-hydro-pyrrolo-[1,2-a]thieno[2,3-d]pyrimidin-4(6H)-one.
abstract: The title mol-ecule, C12H12N2OS, is planar, with an r.m.s. deviation of 0.04 Å. In the crystal, the N atom adjacent to the carbonyl group is sp (2)-hybridized. The crystal structure is stabilized by π-π stacking inter-actions observed between thio-phene and pyrimidinone rings of c-glide-related mol-ecules [centroid-centroid distance = 3.9554 (13) Å] and by C-H⋯π inter-actions, forming an infinite chain along the c-axis direction.
authors.affiliation: S. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan ; Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Science, Urumqi 830011, People's Republic of China.
authors.forename: Khurshed
authors.initials: K
authors.lastname: Bozorov
authors.forename: Burkhon
authors.initials: B
authors.lastname: Elmuradov
authors.forename: Khusnutdin
authors.initials: K
authors.lastname: Shakhidoyatov
authors.forename: Haji Akber
authors.initials: HA
authors.lastname: Aisa
authors.forename: Bakhodir
authors.initials: B
authors.lastname: Tashkhodjaev